Owner`s manual

46
ally goes down as the
volume control setting
is reduced. The actual
improvements in this
McIntosh design
achieve a noise floor of
118 dB, refer to figure
99. The special control-
ling circuitry for this
dual volume control de-
sign is known as the
McIntosh “Dynamic
Control Multiplexer”.
Fully Balanced
Circuitry
To compliment the level
of performance
achieved in one of
McIntosh’s famous
Power Amplifiers with
Quad Balanced Cir-
cuitry, the C1000
Preamplifier also uti-
lizes fully balanced cir-
cuitry. This design to-
pology allows for the
virtual cancelation of
all forms of distortion,
both audible and mea-
surable, along with ex-
tremely low background
noise levels.
In the typi-
cal Preampli-
fier, one set of
circuits have
to amplify the
positive and
negative going
parts of the
audio sound
wave form. In
the C1000, the
implementa-
tion of fully
balanced cir-
cuitry has the
positive going
Figure 98
Figure 99
Signal to Noise vs. Volume Level of the
C1000 Preamplifier versus High Performance
Mechanical and Electronic Volume Controls
-95
-100
-105
- 110
-115
-120
-95 -85 -75 -65 -55 -45 -35 -25 -15 -5 5 15
Volume Level (dB)
Signal to Noise (dB)
Mechanical
Electronic
C1000